Poise-weight of steelyards



Oct. 7 1924.

C. M G. SYKES POISE WEIGHT 0F STEELYARDS Filed May 6, 1922.

Patented Oct. 7, 1924.

UNITED STATES PATENT OFFICE.

CAMERON MoG-REGOR SYKES, OF BIRMINGHAM, ENGLAND, ASSIGNOR TO W. & T.AVERY, LIMITED, OF BIRMINGHAM, ENGLAND.

POISE-WEIGHT OF STEELYARDS.

Application filed May 6,

1 0 all whom it may camera:

Be it known that CAMERON MoGnncon Srnns, a subject of the King of GreatBritain residing at Soho Foundry, Birmingham, England, has invented anew and useful Improvement Connected *ith the P iser \Veights ofSteelyards; and he does hereby declare the following to be a full,clear, and exact description of the same.

This invention has reference to improvements connected with the poiseweights of steelyards and has for its object to improve the loading ofthe poise weight so as to alter the effective weight thereof in order toobtain the correct balance of the weighing apparatus or the like inconnection with which it is employed, the invention residing moreparticularly in the location or disposition of the loading chamber andin the shape of the compartments therein which receive and contain theloading material.

The present invention comprises a poise weight for steelyards whereinthe loading chamber of the poise weight is disposed equally on eitherside of a vertical line passing through the fulcrum knife edge of thesteelyard; the invention further resides in the construction of theloading chamber, more particularly in the shape of the compartmentstherein and the means of attachment of the loading chamber to the poiseweight.

The preferred means of carrying the present invention into effect willnow be de scribed in conjunction with the accompanying sheet of drawingswhich illustrate one embodiment thereof. In the drawings Fig. 1 is aside elevation of the improved construction of poise weight mounted upona steelyard.

Fig. 2 is a perspective view of the loading chamber removed from thepoise weight, and

Fig. 3 is a section taken on Fig. 1.

The present invention is applied to a poise weight 4 whichis mountedupon a steelyard 5 and is provided with the ordinary runners or rollers6 together with a handle 7 for traversing the poise weight along thesteelyard, and a nib 8 for locating the poise weight in the notches 9 ofthe steelyard 5.

line 3 3 of 1922 Serial No. 558,990.

her 13 which is a separable member (see Fig. 2) disposed on theunderside of the bottom or tail section. of the poise weight l Thisloading chamber is arranged equally on either side of a vertical linewhich passes through the fulcrum knifeedge 14 of the steelyard 5 onwhich the poise weight is mounted when the poise weight is in. its zeroposition on the steelyard. The loading chamber 13 is mainly disposedwith in a recess 15 formed in the bottom or tail section 4* of the poiseweight and is secured in position by means of a screw 16. The loadingchamber takes the form of a base plate 17 on which is formed two loadingcompartments 18 each of a- V shape so that the molten lead 19 (or leadshot) which is placed in these compartments for the purpose of loadingthe poise weight at to its correct weight automatically positions itselfwithin the V slots or compartments 18. The flange of the base plate 17forms a positioning means for the loading chamber 13 relat've to theunderface of the poise weight as clearly seen in Fig. 3. l

The particular feature of the present invention resides in thedisposition of the aforesaid loading chamber 13 and in the fact that itsconstruction is such that the balance of the steelyard 5 is not affectedif any change is made in the loading thereof with a consequent reductionof labour and saving of time when testing or rebalancing the weighingapparatus.

Claims 1. In a traversable poise weight for steelyards, a loadingchamber disposed equally on either side of a vertical plane includingthe fulcrum knife of the steelyard on which the poise weight is mountedwhen the said poise weight is in its zero position.

2. In a travcrsable poise weight for steelshaped compartment orcompartments for automatically determining the position oi the loadingmaterial placed therein.

In testimony whereof, I have signed my name to this specification.

CAMERON MCGREGOR SYKES.

